Custom Plastic Molding Services Buffalo TX

Looking for rotational molding alternatives for Texas? Want affordable custom plastic molding that is cost effective for Buffalo area? Then give us a call at our toll free number 866-971-7861 or request a quote today!

Rotational moulding pertains to a plastic production technique that creates hollow stress-free product lines. The method relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have various forms, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this unique from other plastic manufacturing methods because no pressure is needed. It also has few contenders when it comes down to the production of large size hollow products which are resilient and inexpensive.There is a wide range of items that are produced by this process including big water tanks, automobile items, sophisticated designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in regards to type and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

– Relatively low tooling costs. When compared to other plastic manufacturing processes in Buffalo TX 75831, it is a cheaper way of making plastics. This is because apart from the fact that no pressure is required, the cost of mold preparation is low.

– A wide array of design options. There is no limit to the kind of design one may want to create. The rotomoulding process therefore allows for the manufacturing of products that have complex shapes for different purposes.

– Size. The process provides room for the manufacturing of products of any size, large or small. As mentioned earlier, it has few competitors when it comes to the making of large tanks at low costs.

– Low risk. Due to the low costs of creating a mould, the process allows for test runs before one can decide whether to do mass production. It therefore minimizes the risk of losing a lot of investment.

– Durable products. The process allows for even coating of the mould with the heated polymer, giving the product a wall with uniform thickness. It also gives the option of double coating for increased durability. Sometimes metal inserts are placed inside the mould to further strengthen the product.

– Environmentally friendly. There is no waste that could have a negative impact on the environment because the products that cannot be used are reground and reused as polymer.

Examples of Products Made by Rotational Molding

Rotocasting is a very versatile process, making it possible to create a variety of products for different industries.

Furniture– We have plastic cabinets, chairs and tables made from this form of moulding.

There are numerous Texas plastic products also that have been made for the marine industry, lighting, waste storage and transportation, kayaks etc.

Few Disadvantages – There are nominal disadvantages that have been associated with rotocasting. For instance:

– The process is relatively slow when compared to injection moulding.

– There is a limitation when it comes to the type of raw material you can use. Only poly based and nylon polymers can be used.

– The process comes with an increased cost because the polymer has to be ground to powder form before use. These limitations are often overlooked considering that the process is still relatively cheap and offers more in terms of variety when it comes to the finished range of products.

Remember – There are new developments and discoveries that are being made as the world of plastic manufacturing in Buffalo Texas continuously. For instance, tests are being done to see whether there are other materials that can be used for this process. But so far, rotomoulding offers a good option for the production of a wide range of inexpensive plastic products.

The Roto-Molding Process in Detail

This molding system has been used since ancient times for creatingvseverl product lines. Egyptians for instance, worked with rotocasting procedures in the creating of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic items in the USA were manufactured utilizing this approach some time between 1940 and 1950. The system has however taken very long to take affect because it was considered to be a pretty slow-moving process

1. Mold prep work. A fixed volume of polymer in particle form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The colour wanted for the final goods is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then sealed and inserted within the oven.

2. The heat and fusion step. Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done gradually, about 20 revolutions per sixty seconds. The main thing that is important at this moment is the period of time the mold will spend inside the oven. If it stays to long, the material will lose stability and strength, creating a poor item. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which produces bubbles in the finished product.

3. Mold cooling. When the component has completely spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it reduces slightly for ease of extraction from the mould. This is another measure that depends a lot on the correct timing, since rapid cooling reduces the material too quick, causing warping of the item.

4. The discharging or de-molding phase. When the material within te mould has cooled successfully, the molder taking care of the process can then remove the finalized item from the mold. The procedure is repeated from the start, providing a series of identical items.

For more information on the different rotational rotomolding options offered for the Buffalo TX 75831 area, please call our toll free number 866-971-7861 or fill out the form on the right for a consultation!